EP2467006A1 - Remote radio unit - Google Patents

Remote radio unit Download PDF

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Publication number
EP2467006A1
EP2467006A1 EP10813358A EP10813358A EP2467006A1 EP 2467006 A1 EP2467006 A1 EP 2467006A1 EP 10813358 A EP10813358 A EP 10813358A EP 10813358 A EP10813358 A EP 10813358A EP 2467006 A1 EP2467006 A1 EP 2467006A1
Authority
EP
European Patent Office
Prior art keywords
rru
radiating pipes
evaporator
shell body
radiating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10813358A
Other languages
German (de)
French (fr)
Other versions
EP2467006B1 (en
EP2467006A4 (en
Inventor
Zhijian Li
Taqing Feng
Yuping Hong
Jian Shi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of EP2467006A1 publication Critical patent/EP2467006A1/en
Publication of EP2467006A4 publication Critical patent/EP2467006A4/en
Application granted granted Critical
Publication of EP2467006B1 publication Critical patent/EP2467006B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
    • H05K7/20336—Heat pipes, e.g. wicks or capillary pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/0233—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes the conduits having a particular shape, e.g. non-circular cross-section, annular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/0266—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/20—Cooling means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/42—Fillings or auxiliary members in containers or encapsulations selected or arranged to facilitate heating or cooling
    • H01L23/427—Cooling by change of state, e.g. use of heat pipes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/46—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids
    • H01L23/467—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids by flowing gases, e.g. air
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/46—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids
    • H01L23/473—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids by flowing liquids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Definitions

  • the present invention relates to a communication device, and in particular, to a Remote Radio Unit (RRU).
  • RRU Remote Radio Unit
  • An RRU is a novel distributed network coverage mode, in the mode, high-capacity macro cell base stations are centrally placed in an accessible central equipment room, baseband parts are processed centrally, and radio frequency modules in a base station is pulled to the RRU by adopting optical fibers, and are separately placed on stations determined by the network planning, thereby saving a large quantity of equipment rooms required by the regular solution; and meanwhile, by adopting a high-capacity macro base station to support pulling a large quantity of optical fibers far away, the conversion between the capacity and the coverage may be achieved. Because of the foregoing advantages of the RRU, the RRU is widely applied.
  • An existing RRU having a shell includes an RRU radiator structural member and a shell; the RRU radiator structural member includes an RRU and a radiator, a radiating portion of the RRU is connected to the radiator, the radiating portion of the RRU specifically may be a power amplifier module, a duplexer module, or a transceiver module of the RRU, and the radiator includes radiating fins configured to exchange heat with the air so as to achieve radiating.
  • the shell surrounds the RRU and the radiator, and the shell is made of a plastic material, is connected to the RRU radiator structural member through screws, and functions to be aesthetic and prevent solar radiation.
  • the inventors find that: the existing RRU only uses the radiating fins of the radiator to perform heat exchange with the air so as to achieve radiating, and therefore, overall system radiating efficiency is not high.
  • An embodiment of the present invention provides an RRU, which is capable of improving radiating efficiency.
  • An RRU includes an RRU radiator structural member and a shell, the shell includes an evaporator, radiating pipes and a shell body, the inside of the evaporator is in communication with the radiating pipes to form a loop for holding a phase change medium, and the radiating pipes are distributed on the shell body; and the evaporator is connected to a radiator of the RRU radiator structural member.
  • the evaporator included by the shell in the RRU is connected to the radiator of the RRU radiator structural member, so the heat of the radiator can be transferred to the evaporator, and the heat may be further transferred to the shell through the radiating pipes since the evaporator is connected to the radiating pipes, so that the shell participates in the radiating, thereby improving the radiating efficiency and improving the work stability of the RRU.
  • FIG 1 is a structural diagram of an RRU according to an embodiment of the present invention.
  • FIG 2 is a structural diagram of a shell in the RRU according to the embodiment of the present invention.
  • FIG 1 describes an RRU according to an embodiment of the present invention, which includes an RRU radiator structural member 101 and a shell 102.
  • the structure of the shell 102 is shown in FIG 2 , and the shell 102 includes an evaporator 1021, radiating pipes 1022 and a shell body 1023.
  • the inside of the evaporator 1021 is in communication with the radiating pipes 1022, and the radiating pipes 1022 are distributed on a surface of the shell body 1023.
  • the radiating pipes 1022 may be made of a metal material, such metal with good heat conducting performance as copper and aluminum; and may also be made of a plastic material, such as heat conducting plastic.
  • the material of the shell body 1023 may be the same as the material of the radiating pipes 1022, and may also be different from the material of the radiating pipes 1022.
  • the length and the shape of the radiating pipes 1022 may be designed or assembled as required.
  • the evaporator 1021 may be fixed on the shell body 1023; for example, the evaporator 1021 may be fixed on the shell body 1023 by adopting screws or buckles, thereby ensuring that the evaporator 1021 is tightly connected to the shell body 1023.
  • the evaporator 1021 is connected to a radiator of the RRU radiator structural member 101.
  • the evaporator included by the shell in the RRU according to the embodiment of the present invention is connected to the radiator of the RRU radiator structural member, so that the heat of the radiator can be transferred to the evaporator, and the heat may be further transferred through the radiating pipes since the evaporator is connected to the radiating pipes, thereby improving the radiating efficiency and improving the work stability of the RRU.
  • the evaporator in order to enable the evaporator to maintain the position fixed after being connected to the radiator, the evaporator may be locked through screws, thereby ensuring that the heat of the radiator can be transferred to the evaporator.
  • a groove is disposed in the evaporator 1021, so that the groove may be in communication with the radiating pipes 1022 to form a loop, thereby further improving the heat conduction efficiency.
  • a phase changeable medium may be filled in the radiating pipes 1022, and the medium may be such medium having an efficient phase change heat exchange capability as water, ammonia, and Freon.
  • the heat may be transferred in the radiating pipes through the phase changeable medium, and then the radiating is performed through the radiating pipes; further, when the radiating pipes are in communication with the groove of the evaporator to form the loop, the heat may be transferred more quickly between the evaporator and the radiating pipes through the phase changeable medium, thereby improving the radiating efficiency.
  • the radiating pipes 1022 may be embedded in the shell body 1023, so the radiating pipes 1022 and the shell body 1023 may be manufactured through integral molding; for example, when the shell body 1023 is made of the plastic material, the blow-up process may be performed on the shell body 1023 to form the radiating pipes 1022, and in this case, the radiating pipes 1022 is also made of the plastic material; or when the shell body 1023 is made of the plastic material, and the radiating pipes 1022 is made of the metal material, the injection molding may be performed on the radiating pipes 1022.
  • the radiating pipes 1022 may not be embedded in the shell body 1023, and in this case, the radiating pipes 1022 and the evaporator 1021 may be located at two sides of a face of the shell body 1023 respectively.
  • the radiating pipes 1022 and the shell body 1023 may be respectively machined, and then are assembled with the evaporator 1021 to form the shell 102; compared with the practice that the radiating pipes 1022 and the shell body 1023 are manufactured through the integral molding, the foregoing practice may reduce the machining difficulty and the manufacturing cost, and meanwhile the design flexibility may also be improved.
  • a ventilation hole may be opened on the shell body 1023, thereby satisfying requirements of the RRU for the ventilation quantity under different environments.
  • the horizontal position of the radiator is not higher than the radiating pipes, that is to say, the horizontal position of the radiator is lower than or horizontal to the radiating pipes.
  • the gasified medium generated by the evaporator can provide such a sufficient acting force that the phase change medium may flow in the loop formed by the evaporator and the radiating pipes, or additional power elements are mounted in the radiating pipes, the evaporator may also be higher than the radiating pipes.

Abstract

A communication device, or specifically, a Remote Radio Unit (RRU) is provided. The RRU includes an RRU radiator structural member and a shell, where the shell includes an evaporator, radiating pipes and a shell body, the inside of the evaporator is in communication with the radiating pipes to form a loop for holding a phase change medium, and the radiating pipes are distributed on the shell body; and the evaporator is connected to a radiator of the RRU radiator structural member. By using the RRU, the radiating efficiency can be improved.

Description

  • This application claims priority to Chinese Patent Application No. 200910170152.5 , filed with the Chinese Patent Office on September 3, 2009 and entitled "REMOTE RADIO UNIT", which is incorporated herein by reference in its entirety.
    • FIELD OF THE INVENTION
  • The present invention relates to a communication device, and in particular, to a Remote Radio Unit (RRU).
    • BACKGROUND OF THE INVENTION
  • An RRU is a novel distributed network coverage mode, in the mode, high-capacity macro cell base stations are centrally placed in an accessible central equipment room, baseband parts are processed centrally, and radio frequency modules in a base station is pulled to the RRU by adopting optical fibers, and are separately placed on stations determined by the network planning, thereby saving a large quantity of equipment rooms required by the regular solution; and meanwhile, by adopting a high-capacity macro base station to support pulling a large quantity of optical fibers far away, the conversion between the capacity and the coverage may be achieved. Because of the foregoing advantages of the RRU, the RRU is widely applied.
  • An existing RRU having a shell includes an RRU radiator structural member and a shell; the RRU radiator structural member includes an RRU and a radiator, a radiating portion of the RRU is connected to the radiator, the radiating portion of the RRU specifically may be a power amplifier module, a duplexer module, or a transceiver module of the RRU, and the radiator includes radiating fins configured to exchange heat with the air so as to achieve radiating. The shell surrounds the RRU and the radiator, and the shell is made of a plastic material, is connected to the RRU radiator structural member through screws, and functions to be aesthetic and prevent solar radiation.
  • In the research for the prior art, the inventors find that: the existing RRU only uses the radiating fins of the radiator to perform heat exchange with the air so as to achieve radiating, and therefore, overall system radiating efficiency is not high.
    • SUMMARY OF THE INVENTION
  • An embodiment of the present invention provides an RRU, which is capable of improving radiating efficiency.
  • An RRU includes an RRU radiator structural member and a shell, the shell includes an evaporator, radiating pipes and a shell body, the inside of the evaporator is in communication with the radiating pipes to form a loop for holding a phase change medium, and the radiating pipes are distributed on the shell body; and
    the evaporator is connected to a radiator of the RRU radiator structural member.
  • It may be seen from the foregoing technical solution according to the embodiment of the present invention that, in the embodiment of the present invention, the evaporator included by the shell in the RRU is connected to the radiator of the RRU radiator structural member, so the heat of the radiator can be transferred to the evaporator, and the heat may be further transferred to the shell through the radiating pipes since the evaporator is connected to the radiating pipes, so that the shell participates in the radiating, thereby improving the radiating efficiency and improving the work stability of the RRU.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • To illustrate the technical solutions according to the embodiments of the present invention or in the prior art more clearly, the accompanying drawings for describing the present invention or the prior art are introduced briefly in the following. Apparently, the accompanying drawings in the following description are only some embodiments of the present invention, and person of ordinary skill in the art can derive other drawings from the accompanying drawings without creative efforts.
  • FIG 1 is a structural diagram of an RRU according to an embodiment of the present invention; and
  • FIG 2 is a structural diagram of a shell in the RRU according to the embodiment of the present invention.
    • DETAILED DESCRIPTION OF THE EMBODIMENTS
  • The technical solutions of the present invention will be clearly described in the following with reference to the accompanying drawings. It is obvious that the embodiments to be described are only a part rather than all of the embodiments of the present invention. All other embodiments obtained by persons skilled in the art based on the embodiments of the present invention without creative effects shall fall within the protection scope of the present invention.
  • FIG 1 describes an RRU according to an embodiment of the present invention, which includes an RRU radiator structural member 101 and a shell 102.
  • The structure of the shell 102 is shown in FIG 2, and the shell 102 includes an evaporator 1021, radiating pipes 1022 and a shell body 1023.
  • The inside of the evaporator 1021 is in communication with the radiating pipes 1022, and the radiating pipes 1022 are distributed on a surface of the shell body 1023.
  • The radiating pipes 1022 may be made of a metal material, such metal with good heat conducting performance as copper and aluminum; and may also be made of a plastic material, such as heat conducting plastic. The material of the shell body 1023 may be the same as the material of the radiating pipes 1022, and may also be different from the material of the radiating pipes 1022. The length and the shape of the radiating pipes 1022 may be designed or assembled as required.
  • The evaporator 1021 may be fixed on the shell body 1023; for example, the evaporator 1021 may be fixed on the shell body 1023 by adopting screws or buckles, thereby ensuring that the evaporator 1021 is tightly connected to the shell body 1023.
  • The evaporator 1021 is connected to a radiator of the RRU radiator structural member 101.
  • It may be seen from the foregoing description that, the evaporator included by the shell in the RRU according to the embodiment of the present invention is connected to the radiator of the RRU radiator structural member, so that the heat of the radiator can be transferred to the evaporator, and the heat may be further transferred through the radiating pipes since the evaporator is connected to the radiating pipes, thereby improving the radiating efficiency and improving the work stability of the RRU.
  • In an embodiment of the present invention, in order to enable the evaporator to maintain the position fixed after being connected to the radiator, the evaporator may be locked through screws, thereby ensuring that the heat of the radiator can be transferred to the evaporator.
  • Further, a groove is disposed in the evaporator 1021, so that the groove may be in communication with the radiating pipes 1022 to form a loop, thereby further improving the heat conduction efficiency.
  • A phase changeable medium may be filled in the radiating pipes 1022, and the medium may be such medium having an efficient phase change heat exchange capability as water, ammonia, and Freon.
  • After the phase changeable medium is filled in the radiating pipes 1022, the heat may be transferred in the radiating pipes through the phase changeable medium, and then the radiating is performed through the radiating pipes; further, when the radiating pipes are in communication with the groove of the evaporator to form the loop, the heat may be transferred more quickly between the evaporator and the radiating pipes through the phase changeable medium, thereby improving the radiating efficiency.
  • In an embodiment of the present invention, the radiating pipes 1022 may be embedded in the shell body 1023, so the radiating pipes 1022 and the shell body 1023 may be manufactured through integral molding; for example, when the shell body 1023 is made of the plastic material, the blow-up process may be performed on the shell body 1023 to form the radiating pipes 1022, and in this case, the radiating pipes 1022 is also made of the plastic material; or when the shell body 1023 is made of the plastic material, and the radiating pipes 1022 is made of the metal material, the injection molding may be performed on the radiating pipes 1022.
  • Alternatively, the radiating pipes 1022 may not be embedded in the shell body 1023, and in this case, the radiating pipes 1022 and the evaporator 1021 may be located at two sides of a face of the shell body 1023 respectively. The radiating pipes 1022 and the shell body 1023 may be respectively machined, and then are assembled with the evaporator 1021 to form the shell 102; compared with the practice that the radiating pipes 1022 and the shell body 1023 are manufactured through the integral molding, the foregoing practice may reduce the machining difficulty and the manufacturing cost, and meanwhile the design flexibility may also be improved.
  • In an embodiment of the present invention, in order to further improve the radiating efficiency of the RRU, a ventilation hole may be opened on the shell body 1023, thereby satisfying requirements of the RRU for the ventilation quantity under different environments.
  • It can be easily understood that, for better radiating, and for convenience of the circulation of the phase change material in the evaporator and the radiating pipes, the horizontal position of the radiator is not higher than the radiating pipes, that is to say, the horizontal position of the radiator is lower than or horizontal to the radiating pipes. Definitely, in the case that the radiating efficiency is not taken into consideration, or the gasified medium generated by the evaporator can provide such a sufficient acting force that the phase change medium may flow in the loop formed by the evaporator and the radiating pipes, or additional power elements are mounted in the radiating pipes, the evaporator may also be higher than the radiating pipes.
  • An RRU according to the embodiment of the present invention is introduced in detail in the foregoing, and the illustration of the foregoing embodiment is only used to help in understanding the method and the idea of the present invention. Meanwhile, persons having ordinary skill in the art can make variations and modifications to the present invention in terms of the specific implementations and application scopes according to the ideas of the present invention. Therefore, the specification shall not be construed as limitations to the present invention.

Claims (10)

  1. A Remote Radio Unit (RRU), comprising an RRU radiator structural member and a shell, wherein the shell includes an evaporator, radiating pipes and a shell body, the inside of the evaporator is in communication with the radiating pipes to form a loop for holding a phase change medium, and the radiating pipes are distributed on the shell body; and
    the evaporator is connected to a radiator of the RRU radiator structural member.
  2. The RRU according to claim 1, wherein a groove exists in the evaporator, and the groove is in communication with the radiating pipes to form a loop.
  3. The RRU according to claim 1 or 2, wherein a phase changeable medium is filled in the radiating pipes.
  4. The RRU according to claim 3, wherein the phase changeable medium is water, ammonia, or Freon.
  5. The RRU according to claim 1 or 2, wherein the radiating pipes are embedded in the shell body; or
    the radiating pipes are distributed on the outside of the shell body.
  6. The RRU according to claim 1 or 2, wherein the shell body is made of a plastic material, and the radiating pipes are made of a metal material; or
    the shell body is made of a plastic material, and the radiating pipes are made of a plastic material; or
    the shell body is made of a metal material, and the radiating pipes are made of a metal material; or
    the shell body is made of a metal material, and the radiating pipes are made of a plastic material.
  7. The RRU according to claim 6, wherein the metal material is copper or aluminum.
  8. The RRU according to claim 6, wherein the plastic material is heat conducting plastic.
  9. The RRU according to claim 1 or 2, wherein the shell body is opened with a ventilation hole.
  10. The RRU according to claim 1, wherein the horizontal position of the evaporator is horizontal to or lower than the radiating pipes.
EP10813358.8A 2009-09-03 2010-09-03 Remote radio unit Not-in-force EP2467006B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2009101701525A CN101645714B (en) 2009-09-03 2009-09-03 Remote end radio frequency module
PCT/CN2010/076593 WO2011026436A1 (en) 2009-09-03 2010-09-03 Remote radio unit

Publications (3)

Publication Number Publication Date
EP2467006A1 true EP2467006A1 (en) 2012-06-20
EP2467006A4 EP2467006A4 (en) 2012-08-01
EP2467006B1 EP2467006B1 (en) 2015-01-07

Family

ID=41657446

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10813358.8A Not-in-force EP2467006B1 (en) 2009-09-03 2010-09-03 Remote radio unit

Country Status (5)

Country Link
US (1) US20120222444A1 (en)
EP (1) EP2467006B1 (en)
CN (1) CN101645714B (en)
BR (1) BR112012004821A2 (en)
WO (1) WO2011026436A1 (en)

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CN101645714B (en) * 2009-09-03 2012-12-12 华为技术有限公司 Remote end radio frequency module
CN103596297B (en) * 2012-08-13 2017-04-12 华为技术有限公司 Radio remote unit devices and assemblies thereof
CN103717036B (en) 2013-03-06 2015-06-03 华为技术有限公司 Radio remote unit (RRU) and communication device
CN105407685B (en) * 2014-08-21 2017-12-22 华为技术有限公司 Communication products and base station system
CN105578837B (en) 2014-10-16 2018-06-26 华为技术有限公司 Remote Radio Unit and active antenna system
CN204392480U (en) * 2015-02-05 2015-06-10 中兴通讯股份有限公司 A kind of base plate, bottom deck assembly and floor mounting system
CN104768355B (en) * 2015-03-24 2017-11-17 华为技术有限公司 Heat abstractor, radio frequency remoto module, base station module, communication base station and system
CN106714504B (en) * 2015-07-31 2019-11-05 中兴通讯股份有限公司 Remote Radio Unit, installation part and RF communication system
CN106455431B (en) * 2016-10-12 2018-06-08 上海交通大学 Board-like loop thermal siphon temperature-uniforming plate

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WO2011026436A1 (en) 2011-03-10
CN101645714B (en) 2012-12-12
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EP2467006B1 (en) 2015-01-07
CN101645714A (en) 2010-02-10
EP2467006A4 (en) 2012-08-01
US20120222444A1 (en) 2012-09-06

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